Webthe demons within the twelve kizuki are ranked from one to six based on their strength, with lower ranks displaying their numbers and the kanji for “lower rank” in one eye,. Webas the true upper rank six, gyutaro was an extremely powerful demon with over a century's worth of combat experience under his belt, having killed and devoured 15. Webbefore the demon slayers can ever hope to defeat muzan kibutsuji, they have to defeat the 6 upper moons. But who are these powerful demons? Webthe upper moons are ranked from weakest to strongest, with kokushibo at the top as the most powerful among them. Each upper moon possesses unique and. Webwhen most of the members of the upper ranks held on to their bloodthirsty nature from their human lives, others prove to have been slightly misunderstood,. Webthe twelve kizuki note are a group comprised of the twelve most powerful demons alive that answer directly to muzan kibutsuji. They are divided in lower and upper ranks. Webafter the deaths of daki and gyutaro, a new demon needed to fill the position of upper rank 6. This esteemed honor was given to kaigaku, who wasted no. Webnot even the most powerful of muzan's upper ranks was spared from the demon slayers. That said, before his death, kokushibo did manage to wipe out some.
